| Question |
Answer |
| 5 x a = 60 |
a= 12 |
| Conversion: 1 km equals how many meters? |
1000 |
| 1 minute is the same as how mant seconds? |
60 |
| 1 hour is how many seconds? |
3600 |
| Gravity is the most obvious form of ...? |
force |
| Mass times acceleration Equals? |
force |
| Can forces cancel each other out? |
yes |
| when two forces cancel out |
threre is no accelaration |
| do forces always occur in pairs? |
yes |
| The acceleration due to gravity is equal to? |
9.81 meters per second squared |
| Does a force do work when it causes a mass to move? |
yes |
| what is a lubricant? |
Lubricants are fluids that hold sliding surfaces apart to reduce friction |
| What is a bearing? |
bearings are devices that support moving parts and allow them to move with less friction |
| What is the formula for velocity? |
change in distance/ the change in time |
| What is gravity? |
Gravity is a downward force that tries to bring all objects to the center of the earth |
| does gravity always act downward on earth? |
yes |
| Does anything that has mass produce gravity? |
yes |
| how do we communicate magnitude? |
magnitude is eaisly communicated with numbers. ie. 100<1000 |
| how do we communicate direction of force? |
We can use north,east,west, and south |